A comma separated list of options, through which the user specifies
non-layout related preferences, like which key combinations are used
for switching layouts, or which key is the Compose key.
If NULL, a default value is used. If the empty string "", no
options are used.
If the XKB_DEFAULT_OPTIONS environment variable is set, it is used
as the default. Otherwise the system default is used.
A comma separated list of options, through which the user specifies non-layout related preferences, like which key combinations are used for switching layouts, or which key is the Compose key.
If NULL, a default value is used. If the empty string "", no options are used. If the XKB_DEFAULT_OPTIONS environment variable is set, it is used as the default. Otherwise the system default is used.